"As the company continues to rapidly grow and expand globally, this is the perfect time to bring on someone with Brian's deep experience in IT and security," said Cohesity CEO and founder Mohit Aron.
"Brian will ensure we have the right IT business operations in place to fuel the next wave of growth at Cohesity. He will also lead the charge in overseeing security operations – a role that's vitally important as data security and compliance remain top priorities for the company and for our customers."
Spanswick joins Cohesity from Splunk, where he served as senior director of risk and information protection for the Splunk global security team.
He previously held various IT leadership roles at the health IT and medical supplies company McKesson, and worked as a principal consultant at ESI Consulting and director of professional services at Verano.
Earlier in his career, Spanswick worked in sales and sales training at Grainger.
He holds a BA in economics from the University of Colorado at Boulder, and two GIAC cybersecurity certifications.
"I'm very excited to join the team at Cohesity. The company's multicloud data management platform can help organisations dramatically simplify their data management processes while helping to improve their security posture," Spanswick said.
"As CISO, I will focus on delivering IT strategies that directly support the priorities of the business, while helping our customers meet their data management needs."